S
M
T
W
T
F
S
30
84°
56°
31
85°
55°
1
86°
58°
2
85°
53°
3
83°
53°
4
80°
51°
5
76°
45°
6
74°
48°
7
76°
50°
8
80°
54°
9
82°
54°
10
74°
45°
11
70°
49°
12
71°
51°
13
78°
52°
14
80°
55°
15
82°
51°
16
77°
43°
17
69°
44°
18
72°
48°
19
68°
40°
20
76°
53°
21
77°
50°
22
72°
47°
23
Hist. Avg.
68°
43°
24
Hist. Avg.
68°
42°
25
Hist. Avg.
67°
42°
26
Hist. Avg.
67°
42°
27
Hist. Avg.
66°
42°
28
Hist. Avg.
66°
41°
29
Hist. Avg.
65°
41°
30
Hist. Avg.
65°
41°
1
Hist. Avg.
64°
41°
2
Hist. Avg.
64°
41°
3
Hist. Avg.
64°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cawston
Cawston's September 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 40° and 58°. The average high for September is 77° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Cawston. See also: October | November | December.